On this episode, we feature excerpts from a conversation with author and biologist E.O. Wilson, one of the greatest scientists of the last 100 years, who was recently interviewed by Mongabay senior correspondent Jeremy Hance about the Half Earth biodiversity initiative, the Trump Administration, and how he maintains hope for the future.

We also welcome back Mongabay founder and CEO Rhett Butler, who answers a listener question about the natural sounds heard in the background at the start of every episode of the Newscast (the image that illustrates this episode is from the spot where that recording was produced, in Indonesia).

This week we’re joined by Joel Berger, a professor at Colorado State University and a senior scientist with the New York-based Wildlife Conservation Society, who recently wrote a commentary for Mongabay arguing that there are too many large mammals like yaks and Saiga antelope living in remote regions (so-called “edge species”) that are wrongfully overlooked by conservation initiatives. Then from Peru, Dr. Andrew Whitworth, a conservation and biodiversity scientist with the University of Glasgow, shares rare recordings he recently made in the field of a critically endangered bird called the Sira Curassow.